Consider a Star with 2 Planets

question 27

Multiple Choice

Consider a star with 2 planets. The mass of planet A is the same as the mass of planet B. The orbit of Planet A is on average, closer to the star than the orbit of Planet B. Which of the following statements is true?

• A)Planet A moves with the same speed as Planet B.
• B)Planet A is, on average, moving faster than Planet B.
• C)The relative orbital speeds depend on the masses of the planets.
• D)Planet A is, on average, moving slower than Planet B.

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Definitions:

Lombardy

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